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  • Book Overview & Buying Python for Secret Agents
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Python for Secret Agents

Python for Secret Agents

By : Steven F. Lott
4 (9)
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Python for Secret Agents

Python for Secret Agents

4 (9)
By: Steven F. Lott
Buy this Book

Overview of this book

If you are a Python beginner who is looking to learn the language through interesting projects, this book is for you. A basic knowledge of programming and statistics is beneficial to get the most out of the book.
Table of Contents (7 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Our Espionage Toolkit
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1. Our Espionage Toolkit
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Getting the tools of the trade – Python 3.3
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Getting more tools – a text editor
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Confirming our tools
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Background briefing – math and numbers
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Handling text and strings
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Organizing our software
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Working with files and folders
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Solving problems – recovering a lost password
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Summary
2
2. Acquiring Intelligence Data
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2. Acquiring Intelligence Data
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Accessing data from the Internet
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Using a REST API in Python
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Organizing collections of data
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Solving problems – currency conversion rates
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Summary
3
3. Encoding Secret Messages with Steganography
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3. Encoding Secret Messages with Steganography
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Background briefing – handling file formats
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Using the Pillow library
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Some approaches to steganography
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Detecting and preventing tampering
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Solving problems – encrypting a message
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Summary
4
4. Drops, Hideouts, Meetups, and Lairs
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4. Drops, Hideouts, Meetups, and Lairs
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Background briefing – latitude, longitude, and GPS
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Finding out where we are with geocoding services
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How close? What direction?
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Compressing data to make grid codes
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Decoding a GeoRef code
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Creating natural area codes
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Solving problems – closest good restaurant
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Summary
5
5. A Spymaster's More Sensitive Analyses
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5. A Spymaster's More Sensitive Analyses
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Creating statistical summaries
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Creating Python modules and applications
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Creating our own classes of objects
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Comparisons and correlations
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Writing high-quality software
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Solving problems – analyzing some interesting datasets
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Summary
6
Index
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Index

Chapter 3. Encoding Secret Messages with Steganography

We're going to acquire intelligence data from a variety of sources. In the previous chapter, we searched the WWW. We might use our own cameras or recording devices. We'll look at image processing and encoding in this chapter.

To work with images in Python, we'll need to install Pillow. This library gives us software tools to process image files. Pillow is a fork of the older PIL project; Pillow is a bit nicer to use than PIL.

Along the way, we'll visit some additional Python programming techniques, including:

  • We'll review how Python works with OS files and also look at some common physical formats, including ZIP files, JSON, and CSV.
  • We'll introduce JPEG files and learn to process them with Pillow. We'll have to install Pillow before we can make this work.
  • We'll look at several image transformations, such as getting the EXIF data, creating thumbnails, cropping, enhancing, and filtering.
  • We...
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Python for Secret Agents
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